US412338A - Folding chair - Google Patents

Description

(No Model.)

K. 'I'. HURLBURT.

FOLDING CHAIR. No. 412,888. Patented 008.' 8, 18898.

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UNITED STATES PATENT rtree,

KELLOG THOMAS HURLBURT, OF LAKEWOOD, NEWv JERSEY.

FOLDING CHAIR.

SPECIFICATION forming part of Letters Patent No. 412,338, dated October S, 1889.

Application led June 14, 1889. SerialN 314,285. (No model.)

To all wwmjt may concern:

Be itknown that I, KELLOG THOMAS I-I URL- BURT, a citizen of the United States, residing at Lakewood, in the county of Ocean and State of New Jersey, have invented certain new and useful Improvements in Folding Chairs; andI do declare the following to be a full, clear, and exact description of the invention, suoli as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specilication.

My invention relates to folding stools; and

lits objects are, first, to permit the rotation thereof at will; second, to secure its ready portability; third, to adapt the parts correlatively to each other, so that the wear will be minimum and the serviceability uniform; and, fourth, to accomplish these aims with structural simplicity. I attain these purposes by the device shown in the accompanying drawings, in which Figure l is an elevation of a stool embodying the essential features of my invention. Fig. 2 is a bottom plan view of the plate wherefrom the seat-supporting arms radiate. Fig. 3 is a central vertical. section of the plates wherefrom the legs and the arms respectively project lin opposite directions. Fig. 4 is a top plan view of the stationary plate from which the legs radiate. Fig. 5 is a bottom plan view of the same. Fig. 6 is the seatfsupporting arm; and Fig. 7 is the standard whereon slides the reciprocating' plate, to which the legs are attached, and the top portion whereof constitutes an axial center for the revolution of the seat-supporting plate.

The same designations indicate corresponding parts in the several views.

The reasons that render a revolving chair desirable are likewise applicable to folding stools or camp-chairs, although the latter have not been heretofore so constructed.

In developing the invention shown in application serially numbered 299,804, filed by me on the 13th day of February, 1889,I have discovered that by a slight structural alteration of the parts a revolving seat can be obtained in folding chairs, and to this end mypresent invention is addressed.

From the bottom of the stationary plate O three grooved bearings c radially project, wherein the legs A, having bases ce2, are pivotally held by pins c. About one-third the length of the legs from the base the yokes H project from each leg, wherein one end of the connecting-rod G is secured, the othery end thereof being attached to the reciprocating plate F, that slides on the standard E, its motion downwardly being limited by the button e2 and upwardly by the nut e. Superposed over the plate O, by a washer D and nut e', (engaging the threaded end of the standard E,) and having a swivel motion around the annular boss l), is the revolving plate B, from each corner of whose lower surface depend the bearing-yokes l?, wherein the arms A are held by the pins be, passing through the perforations (L, and to whose upper grooved end ct the seat I is attached.

It will be seen that during carriage of the seat the legs A and arms A are disposed parallel to t-he standard E, and the whole enveloped in the seat I6 X'Vhen required for use, the legs are spread by an umbrella arrangement, and the arms are angularly disposed, as shown, to receive and maintain the seat. A perfect rotation thereof is possible by reason of the swivel-joinder of the plates B O.

Having thus fully described my invention, what I claim is-= As an improved article of manufacture, arevolving folding stool consisting of the stationary plate O, having an annular boss l) on its upper surface and radial grooved bearings c on its lower surface, the legs A, suitably held in such grooved bearings, the plate B, superposed over the plate C and adapted to revolve around the annular boss b, the standard E, whereto the plates B O are secured between threaded nuts e e', so as to permit a horizontal rotary motion of the seat portion on the leg portion of said stool, the reciprocating plate F, whence the connectingrods G radiate that serve to regulate the angle of the legs to the axial center, and the seat I, the whole (zo-operating as and for the purpose herein fully shown and described.

In testimony whereof I afix my signature in presence of two witnesses.

KELLOG THOMAS HURLBURT.

TWitnesses: i

W. O. OLEARY, ALBERT M. BRAnsHAw.

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